Reduce Diesel Emissions from TRANSIT BUSES

Global populations experience diesel exhaust exposure every day through urban buses.  Diesel retrofit emission mandates for the mass transit industry revolve around reducing toxic exhaust emissions that harm passengers and pedestrians.

An emission control system for the transit industry must also provide an effective solution with easy installation and optimization of vehicle up-time.

Clean diesel technologies and solutions for transit buses are listed below:



OEM DPF Replacement Aftermarket Filters

Brand new with no core charge for 2007 and newer medium and heavy duty diesel vehicles.  Built for easy installation and direct replacement for Cummins, CAT, MACK/Volvo, Detroit Diesel and Navistar/Maxxforce engines.

Diesel Oxidation Catalyst Muffler (DOC)

DOC Technology, combined with silencer, the Purimuffler Technology offers an industry leading, EPA-verified 20% to 40% particulate matter (PM) reduction.

When combined with our closed crankcase ventilation (CCV) system, EPA-verified PM can be reduced by up to to 40%

AZ purimuffler
AZ Purifier

AZ Purifier DOC

In this diesel retrofit, an AZ Purifier is installed upstream of the vehicles original muffler, into a single integrated package, to reduce diesel emissions by an industry-leading verified 20-40% when paired with a CCV.

Passive DPF Systems

90% emission reduction, high thermal conductivity, high temperature toleration, and superior noise attenuation comparable to a high grade muffler.  Efficient, durable and quiet.   

huss mk

Active DPF Systems

90 - 99% emission and soot reduction, utilizes electric or diesel fueled burners to regenerate DPF turning collected soot particles into removable ash while DPF is still on the vehicle. 

Closed Crankcase Ventilation Systems

Unlike exhaust emissions, crankcase gases normally escape into the environment  through the crankcase vent tube.  The CCV effectively eliminates 100% of crankcase emissions at all times, improving passenger compartment air quality. as well as air quality for personnel working in the vicinity of the operating equipment.